URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [or1ksim/] [testsuite/] [test-code-or1k/] [support/] [support.c] - Diff between revs 93 and 233

Rev 93	Rev 233
Line 889...	Line 889...

`return dst;`	`return dst;`

`} /* memcpy () */`	`} /* memcpy () */`

`No newline at end of file`	`No newline at end of file`
	`/* --------------------------------------------------------------------------*/`
	`/*!Pseudo-random number generator`

	`This should return pseudo-random numbers, based on a Galois LFSR`

	`@return The next pseudo-random number */`
	`/* --------------------------------------------------------------------------*/`
	`unsigned long int`
	`rand ()`
	`{`
	`static unsigned long int lfsr = 1;`
	`static int period = 0;`
	`/* taps: 32 31 29 1; characteristic polynomial: x^32 + x^31 + x^29 + x + 1 */`
	`lfsr = (lfsr >> 1) ^ (unsigned long int)((0 - (lfsr & 1u)) & 0xd0000001u);`
	`++period;`
	`return lfsr;`
	`}`

`No newline at end of file`	`No newline at end of file`